while as myself on linux we stuck with the half of their speed on windows with claymore miner i just got around 45~49 per card for modded rx 470....
I hope to consider this in the roadmap....
Just booted windows disk and tested newer Claymore 4.0
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GPU #0: Ellesmere, 8192 MB available, 36 compute units
GPU #1: Ellesmere, 8192 MB available, 36 compute units
ZEC - Total Speed: 135.354 H/s, Total Shares: 151, Rejected: 1, Time: 00:05
ZEC: GPU0 68.841 H/s, GPU1 66.452 H/s
Pool switches: ZEC - 0
Current ZEC pool share target: 0x0025d4c3 (diff: 1732H)
GPU1 t=49C fan=62%, GPU2 t=60C fan=65%
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This is with intensity set to 2 and my quad amd APU A8-7600 is 50% loaded. Using -i 0 I get almost equal results with silentarmy's miner. Until someone finds different approach for gaining more Sol/s results will not be much different...I would love to help but me myself not coder at all ... I can otherwise help with packing and better newbies support. I also don't think that windows should be considered priority...if you have 1/2 rigs...OK but headless rigs are on the other hand preferred and easily monitored.